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ECO Button

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66K views 23 replies 14 participants last post by  CaspianM  
What exactly does the ECO mode button do?

Do you use it? Is it always on?


Have you noticed an MPG improvement?

On my '15 Durango ive noticed it changes the transmission shift points, and throttle not as responsive.

I have mine off because of the weird transmission lag it introduces.

I've got a Durango 2015 R/T.






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Eco mode is cylinder deactivation to help with the fuel economy . From what I heard it does not make that difference on the 5.7 HEMI if it actually make any difference at all.

My experience was weird because I got higher MPG with eco mode on. I always turn it off.